Expansion of (1+6x)/(1-x)^10.

Terms

a(0) =1a(1) =16a(2) =115a(3) =550a(4) =2035a(5) =6292a(6) =17017a(7) =41470a(8) =92950a(9) =194480a(10) =384098a(11) =722228a(12) =1301690a(13) =2261000a(14) =3801710a(15) =6210644a(16) =9887999a(17) =15382400a(18) =23434125a(19) =35027850a(20) =51456405a(21) =74397180a(22) =106002975a(23) =149009250a(24) =206859900a(25) =283853856a(26) =385314996a(27) =517788040